What should I do?

(volume up)

Is it normal? This is my third unit of the same laptop (Legion 7i Gen9 i9/4070) and I didn't notice this sound to be present in the previous ones (which had many other defects tho...). It was noticeable since day one but not in a constant way, then yesterday it sarted to be audible like 80% of the time, even with the fans at max rpm and with music on, no matter what I'm doing. It is like some sort of coil whine I think (definitely not a clogged fan since it is there also when they're off, but maybe their AC motor has some shaking?)